user 65942 about 10 years ago The head certainly looks like a GM Sniper II but look at the shoulders, they're completely different, and the Sniper II carries it's beam sabers on it's rear skirt armor, and the those weird elbows are also missing as well.
NETRUN about 9 years ago as a matter of fact its a Gm spartan http://gundam.wikia.com/wiki/RGM-79S_GM_Spartan